The plank pod could't be started up with Containerd 1.4.4

[vacheli]

Kubernetes version: v1.20.4
OS: Ubuntu 20.04.2 LTS

Installing Command:
squashctl deploy squash --crisock /run/containerd/containerd.sock --namespace test

Error info following:

time="2021-04-30T07:33:10Z" level=info msg="squash started 0.5.18"
E0430 07:33:10.720631       1 remote_runtime.go:482] Status from runtime service failed: rpc error: code = Unavailable desc = all SubConns are in TransientFailure, latest connection error: connection error: desc = "transport: Error while dialing dial unix /var/run/cri.sock: connect: connection refused"
time="2021-04-30T07:33:10Z" level=fatal msg="Cannot get container process locator" error="rpc error: code = Unavailable desc = all SubConns are in TransientFailure, latest connection error: connection error: desc = \"transport: Error while dialing dial unix /var/run/cri.sock: connect: connection refused\""